Clearly, we need disinfected water so we aren't at risk for many diseases such as cholera and hepatitis. However there are more than 600 water disinfectant byproducts have been discovered and many are toxic. The EPA regulates only 11 of these products. Haloacetic acid (HAAs), triclosan, dioxins, chlorine, fluoride, pharmaceutical drugs, and many other toxins are in our water supply reservoirs. It is important to filter the water delivered to our homes so we aren't exposed to such high levels of these toxins because they can cause birth defects, neurological problems, and even cancer.